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Leisure Lakes Bikes£15.99Visit shop SunRace MFM2A 7 Speed S-Race Multi Freewheel Chrome
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The SunRace MFM2A 7-Speed Multi Freewheel is designed for cyclists looking to maintain or upgrade their vintage or entry-level drivetrains with a reliable, budget-friendly component. Featuring durable steel construction and advanced Fluid Drive technology, it offers consistent shifting performance across a versatile 14-28T gear range. While it is an excellent choice for general commuting and casual riding, users should note that it is specific to freewheel-type hubs rather than modern cassette systems and requires a dedicated freewheel removal tool for installation.
| Model Part Number | MFM2A 7DS-BOX |
|---|---|
| Brand | SunRace |
No, this freewheel is optimized for 7.3mm width chains, which are typically standard for 7-speed drivetrains.
It is suitable for casual mountain biking or hybrid use, but it is not intended for aggressive off-road or downhill cycling.
You need a standard bicycle freewheel removal tool, commonly referred to as an FR-1 type tool.
It comes with factory lubrication, though an additional light application of bicycle-specific lube can improve performance during the initial break-in period.
Freewheels are self-contained units and do not require a separate lockring; they thread directly onto the hub body.
Check your rear derailleur hanger alignment and ensure your cable tension is correctly adjusted.
Inspect the unit for grit or sand. A light application of heavy-weight oil or specialized freewheel lubricant may be required if internal seals have been compromised.
Ensure you are not cross-threading. Verify that your hub is a threaded freewheel type and not a modern cassette-only hub.
Installation of the MFM2A requires a standard freewheel removal tool that matches the specific spline pattern on the face of the unit. Ensure that your hub threads are clean and lightly greased before installing to prevent seizing. This unit is strictly compatible with 7-speed shifters and 7.3mm width chains; using a thinner or thicker chain may result in poor shifting performance or accelerated wear. For maintenance, keep the sprockets clean from debris and grit using a bicycle-specific degreaser. Apply a light chain lubricant regularly to ensure the internal pawl mechanism remains free and quiet during coasting.
